akka/akka-core

better support for Props.create when creating generic Actor In Java

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#25,885 opened on Nov 7, 2018

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 (7 comments) (0 reactions) (0 assignees)Scala (3,547 forks)batch import
1 - triagedhelp wantedt:coret:java

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Description

There is no ClassTag in Java , so How would the Props.create looks like if I want to get a generic props factory.

If I have an Actor like:

class MetricsEventListener<Event extends MetricsEvent> extends AbstractActor

it's not easy to specify the actorClass parameter in Java.

def create[T <: Actor](actorClass: Class[T], creator: Creator[T])

Contributor guide

Research direction
Investigate how to provide better support for Props.create with generic Actors in Java. Look into existing patterns for type safe actor creation without ClassTag, and consider proposals like type tokens or factory methods.
Tech stack
javascala
Domain
api
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
JavaScalaAkka basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40